Whenever you create a new Craigslist post a new ID is created for you. This ID is something you can refer back to in order to look at the contents of your post. You may edit and update the post at any time. Your posting ID Craigslist is a good thing to take note of for a variety of reasons. To successfully sell and item, services, or achieve whatever goal you set forth with a post on Craigslist you should pay close attention to the ID that you posted. Did you know ads get pushed back over time? When your ad gets a little old it might be hard for people browsing Craigslist to find. Use the email you connected to your Craigslist post to resubmit the posting. Your posting ID Craigslist should be in one of your emails. Click on the link and resubmit your post to boost it back to the top of Craigslist ads. You can do this after a certain amount of days. Keeping up with your post and getting it back to the top amongst all the ads is one of the most important things your personal posting ID can do for you.